Base64 Encoder / Decoder
Encode and decode text strings to and from Base64 format safely
How Does It Work?
Online UTF-8 safe Base64 encoder and decoder. Convert plain text to Base64 representation or decode Base64 strings with instant validation.
Translates binary byte sequences into printable ASCII characters.
Related Guides & Calculation Deep Dives
All guidesHow to Create a Strong Password That You Can Remember
A truly strong password relies on length rather than complex symbols. A 16-character passphrase composed of 4 random words (like "coffee-bicycle-winter-guitar") has higher mathematical entropy and takes modern supercomputers centuries to crack, while remaining easy for humans to remember.
What Is JSON? A Beginner's Guide With Examples
JSON (JavaScript Object Notation) is a lightweight, human-readable data format used to transmit information between web servers and browser clients. It stores data in key-value pairs and arrays, using strict syntax rules like double quotes around keys and no trailing commas.
What Is Base64 and When Should You Use It?
Base64 is a binary-to-text encoding algorithm that translates binary bytes into 64 ASCII printable characters (A-Z, a-z, 0-9, +, /). It allows binary data like images or certificates to travel across text-only channels without corruption, increasing payload size by roughly 33%.
Base64 Encode/Decode FAQs
Common questions, calculation formulas, and usage rules.
Yes, UTF-8 byte array encoding ensures complete support for all Unicode characters and emojis.